Sabtu, 22 Desember 2012
The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X. (DOWNLOAD)
Stellarium is a free open source
planetarium for your computer. It shows a realistic sky in 3D, just
like what you see with the naked eye, binoculars or a telescope. It is
being used in planetarium projectors. Just set your coordinates and go. (DOWNLOAD)
